Results 21 to 30 of about 42,477 (265)
Non-coherent view on NOMA-MIMO transmission
, 2023 This material is fully dedicated to the “Incoherent approach for Power NOMA-RIS-MIMO transmission in wireless channels”. Such kind of approach might be successfully applied in dense networks formed by high-speed-vehicles (HSV networks, etc.), as those scenarios take place in Doubly-Selective communication channels typical for such kind of radio ...
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Coherent transitions between the shallow acceptor levels in germanium using intense THz pulses
New Journal of Physics, 2013 Nonlinear transmission spectroscopy was performed on a doped Ge:Ga semiconductor using intense THz pulses with different cycle numbers. When single-cycle pulses were used, non-perturbative phenomena, such as the ionization of shallow impurities, competed
Masaya Nagai +4 more
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Multi‐user uplink transmission with asymptotic full‐receiver‐diversity in massive MIMO systems
IET Communications, 2021 A scenario of uplink transmissions from multiple single‐antenna users to a base‐station with large number of antennas is considered in this letter. Based on the conditional statistic properties of the received signals, a maximum likelihood‐based detector
Guo Li
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New Journal of Physics, 2018 We propose a long-distance continuous-variable quantum key distribution (CVQKD) with a four-state protocol using non-Gaussian state-discrimination detection.
Qin Liao +4 more
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Nanophotonics, 2022 Globally, the long-haul transmission of ultra-high bandwidth data is enabled through coherent communications. Driven by the rapid pace of growth in interconnectivity over the last decade, long-haul data transmission has reached capacities on the order of
Xing Peng +6 more
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Sensors, 2022 The objective of this study is to evaluate Grassmannian constellations combined with a spread spectrum multiple access scheme for underwater acoustic mobile multiple access communication systems.
Christophe Bernard +2 more
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Differential Data-Aided Beam Training for RIS-Empowered Multi-Antenna Communications
IEEE Access, 2022 The Reconfigurable Intelligent Surface (RIS) constitutes one of the prominent technologies for the next generation of wireless communications. It is envisioned to enhance the signal coverage in cases when the direct link of the communication is weak ...
Kun Chen-Hu +2 more
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IEEE Open Journal of the Communications SocietyCELL-FREE massive multiple-input multiple-output (MIMO) is a promising technology for next-generation communication systems. This work proposes a novel partially coherent (PC) transmission framework to cope with the challenge of phase misalignment among ...
Unnikrishnan Kunnath Ganesan +2 more
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Wireless Chaos-Based Communication Systems: A Comprehensive Survey
IEEE Access, 2016 Since the early 1990s, a large number of chaos-based communication systems have been proposed exploiting the properties of chaotic waveforms. The motivation lies in the significant advantages provided by this class of non-linear signals.
Georges Kaddoum
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IEEE Photonics Journal, 2012 The combination of polarization-multiplexing (pol-mux) high-order quadrature-amplitude-modulation (QAM) format and non-data-aided (NDA) channel equalization largely enhances the spectral efficiency of the coherent optical systems.
Chen Zhu +6 more
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